Our test device was a Lenovo Yoga 920 that is on loan as our Thunderbolt reference device. Our review of this exquisite device is here.
In sequential read/write it achieved 2815/2097Mbps when connected to the Lenovo Yoga’s Thunderbolt port. That is on par with what Samsung claims – all is good.
Interestingly the Yoga internal drive achieved 3397/1971Mbps drive, so the X5 is a little faster at writing to disk for larger file sizes. While both are PCIe NVMe 3.0 x 4 lane, the X5 is a later version 1.3.
We also tried via a Kensington Thunderbolt 3 dock which is our pick for Windows devices. As expected the read/write speeds were down about 10-20% – still very fast.
The X5 also managed to maintain the constant speed not wavering over 100GB file tests.
Who is it for?
If you are using large files – photography rendering or video editors then you can use this both as a backup and even render on.